Finally, it works! I spent more time today searching mail archives
looking for other clues. One individual noted that his G520 worked on
channel 1.
When I got home from work I tried channel 1. Unfortunately (or maybe
forutnately), I could not change the channel on the DLink DI-624
router. The channel selector would not accept any entry other than the
default channel 6. I called DLink Customer Service to get some help.
The tech told me that when the Router is running in the Super G mode
(108Mb), it uses channels 1 & 6 simultaneously to produce that
bandwidth. Super G mode needed to be turned off to select other than
the default channel.
Once I turned off Super G at the router, I selected channel 1 and
finally the G520 would start working. I then tried channel 6, which
also worked.
For me, the mystery of driverloader, MDK 10.1, and a Rev. B DWL-G520 is
solved. For others, YMMV. Linuxant should consider a change to
driverloader for this issue.
Charlie